Tank for motorcycle



FIG. 1 is a perspective view from the left rear of the tank for motorcycle showing my new design;

FIG. 2 is a perspective view from the left front thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

The right side elevational view is substantially the same as the left side elevational view shown in FIG. 3.

The broken lines shown in all drawing views are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tank for motorcycle, as shown and described. 